Positive Blood Tests/negative Biopsy in Celiac Disease Pre-Diagnosis, Testing & Symptoms Posted October 4, 2007 · Report to Admin Thanks for the info! I'm going to pass it onto my dad. I have been telling him just go on the diet and see how you feel, but he's stubborn and always wants to believe what the doctors tell him. At least where I live, I think the doctor's are way behind on Celiac and gluten sensitivities. I went through the Enterolabs because I was frustrated after 25 years of no answers except for the repeated diagnosis of IBS. I was not going to do ONE more invasive test, which when they did them never even tested me for Celiac. Ever since I went on a gluten free and dairy free diet I have improved and I'm feeling better than I ever have.